Duke assistant Chris Collins

Brian Spurlock-USA TODAY Sports

Duke coach Mike Krzyzewski (right) stands with assistant coach Chris Collins during practice the day before the semifinals of the Midwest regional of the 2013 NCAA tournament at Lucas Oil Stadium in Indianapolis.

Duke coach Mike Krzyzewski (right) stands with assistant coach Chris Collins during practice the day before the semifinals of the Midwest regional of the 2013 NCAA tournament at Lucas Oil Stadium in Indianapolis.